Photographic-plate magazine.



G. C. BRUHN, JR. PHOTOGRAPHIC PLATE MAGAZINE. APPLICATlON FILED JUNE 16. 1915.

Patented Dec. 28, 1915.

4 SHEETS-SHEET I.

a E 8 8 E u w W COLUMBIA PLANOORAPH C0.,W.ASNINGTON. D. c

G. C. BRUHN, JR.

PHOTOGRAPHIC PLATE MAGAZINE.

APPLICATlON FILED JUNE 16, 1915.

Patented Dec. 28, 1915.

4 SHEETS-SHEET 2.

ATTORNEYS 2 Z 0 J m p %QH M 7 7 0 6 n H i 6 u 5 a i ,7 7 z T I h m a M w M -fl m W I .lmllli Z L f a J w w l M w/ flwwww 2 W a a 7 WITNESSES cnLumnm mums-mm! COUWASIIINGTLJN D. c.

G. G. BRUHN, JR-

PHOTOGRAPHIC PLATE MAGAZINE.

' APPUCATIQN FILED JUNE I6, 1915- I 1,166,353. Patented Dec. 28, 1915.

4 SHEETS-SHEET 3.

INVENTOR WITNESSES ATTORNEYS coumnm PLANOG mum C0,, WASHINGTON, 0. c

G. C. BRUHN, JR.

PHOTOGRAPHIC PLATE MAGAZiNE.

APPLICATION FILED JUNE 16, 1915.

Patented Dec. 28, 1915.

4 SHEETSSHEEI 4- INVENTOFI t? ATTOIN Y8 WITNESSES COLUMBIA PLANDGRAPH C0.,WASHL'\'GTON, u. c.

UNITED STATES PATENT OFFICE.

GEORGE C. BRUHN, JR., F ELM GROVE, WEST VIRGINIA, ASSIGNOR 0F ONE-HALF TO WILLIAM F. BBUI-IN, OF WI-IEELING, WEST VIRGINIA.

PHOTOGRAPHIC-PLATE MAGAZINE.

Application filed June 16, 1915.

To (all W71 am it may concern.

Be it known that I, Gnonen (I. BRUHN, J12, a citizen of the United States of America, and resident of Elm Grove, county of Ohio, and State of West Virginia, have inw-ented certain new and useful Improvements in lhotographic-Plate Magazines, of which the following is a specification.

This invention relates broadly to photographi apparatus, and specifically to a magatazine for photographic plates.

The primary obyet of the invention is to pr: i magazine in which may be carried in small compass a relat'vely large number of the ordinary scnsi ed plates employed in ahetographic cameras.

A furtaei object is to provide a magazine in which plates are carried separate and apart from individual plate holders and which is dapted to receive such plates from and to 1' plates to plate holder without exposing them to the light.

A still further object is'te provide a clevice of the character mentioned to and from which plates can only be delivered when an individual plate-holder is associated tl'ierewith; and. further, to provide an apparatus which is convenient to operate.

lVith these and various other important objects in view, the invention resides in the features of construction, arrangement of parts and combinations of elements which will hereinafter be exemplified, reference being had to the accompanying drawings, forming a part of this specification, in which- Figure 1 a front elevation of the magazine, showing a plate holder associated therewith in plate-introducing position: Fig. 2 a side elevation of the same; Fig. 3 is an enlarged view of the magazine partially in top plan. and partially in horizontal section: Fig. 4 is a view of the same partially in central vertical section and partially in end elevation, the cover-plate for the indicatoudisk and a portion of the actuatinggear for the carriage being shown removed; Fig. is an inner face view of aport-ion of said carriage-actuating gear, removed; Fig. 6 is an outer face view of the same, partly in broken section; Fig. 7 is a horizontal section of the same; Fig. 8 is a view of the individual plate holder, partially in side elevation and partially in broken section; Fig. 9 is a longitudinal sec- Specification of Letters Patent.

Patented Dec. 28,1915.

Serial No. 34,342.

tion of the same; Fig. 10 is an end elevation of a broken portion of the lower end of the individual plate holder, showing the cam; Fig. 11 is an edge view of the same; and-Fig. 12 is an enlarged partial longitudinal section and a partial broken elevation of the magazine and individual plate holder, the latter being shown mounted in plate introducing position.

Referring to said drawings in which like designating characters distinguish like parts throughout the several views 1 indicates the opposite side-walls, 2 the end-walls, and 3 the bottom of a rectangular magazine casing the interior depth and width of which substantially correspond to the length and width of the photographic plates which it is desired to carry, while its thickness may be varied to give it any desired platecarrying capacity. The opposite vertical end walls 2 of said casing carry on their inner faces spaced vertically-disposed strips 4:, preferably of thin sheet metal, which project slightly inward into the interior to form therebetween oppositely disposed pockets adapted for receiving sensitized glass photographic plates in spaced noncontacti-ng relation.

The upper end or top of the casing is closed by a flexi le curtain 5 of a suitable light-excluding material, said curtain being stretched across said top and movable over rollers 6 provided at the upper ends of the opposite sides 1. The opposite ends of said curtain are movable in open spaces 7 formed between said sides 1 and an outer sheath or covering 8 of metal or other suitable material, the upper portions of said sides being offset and made of less thickness than the lower port-ions thereof to provide said spaces 7, as is most clearly shown in Fig. 4. A pair of flexible straps or tapes 9 have their opposite ends attached to the opposite ends of said curtain at points adjacent to the lateral edges of the latter, said tapes being passed downward to and under suitable small rollers 10 mounted at opposite ends of suitable horizontal grooves or channels 11 provided in the end walls 2, said tapes thence crossing fom one side to the other through said channels, as shown in Figs. 3, 4 and 5.

At the top of the casing each of the lat' eral edges of the curtain 5 travels back and forth beneath a narrow horizontally disto the slot and has its ends journaled in suitable bearings 47 provided Within the ends of the box 33, said ends of said shaft being thence projected outward through said box ends. One of the ends of said shaft carries thereon a head 48 having a cross-groove 19 in its outer face adapted, when the lower end of the plate holder is inserted. in the open top of the carriage 13. to receive therein a cross-head 50 carried by the inner end of a short shaft 51 which is journaled in the corresponding end of said carriage and in a bracket 52 mounted on the outer face of said end of the carriage. A knob is fixed on the outer end of said shaft 51 whereby the latter may be rotated for effecting a corresponding rotation of the shaft 5L6 whereby the said shutter 37 is swung out of and into closin relation to slot ill. Said shaft 51 has fixed thereon between the bracket and the adjacent end of the carriage a spur gear 51 and disposed in underlying meshing relation to the latter is a second spur-gear fixed on the end of a shaft 56 which lies laterally with respect to the slot and which is journaled in the opposite ends of said carriage. The shutter is fixed upon said shaft 56, and, consequently. is actuated to move into and out of closing relation to said slot '22 in unison with the closing and opening movements of the shutter 37.

A radially disposed pin 57 is carried by the gear 5 1, and, when said gear occupies a position wherein the shutters 25 and 37 are disposed in closing relation to the slots and 3. respectively, said pin is disposed in closely underlying relation to a horizon.- tally movable dog 58 which is disposed laterally with respect to said gear and which, in its normal position thus prevents rotation of said gear and of the shafts +16 and 56. Said dog is slidably mounted in openings provided therefor in the bracket 52 and in the adjacent end of the carriage and has a spring 59 disposed in inwardly press ing relation to its outer end whereby it is caused to normally occupy an inwardly thrust position with its inner end projected into the interior of the carriage, as shown in Fig. 3. The said inner projecting end of said dog is suitably beveled so that it will be moved outward against the tension of its spring 59 when the box 33 formed on the lower end of the plate holder '28 is introduced in said carriage, the pressure of the end portion of said box on the beveled face of said dog acting to automatically move said dog outward to an out-of-theway position. \Vhen occupying said outwardly thrust, or out-of-the-way positiona groove 60 provided in that face of said dog which is next to gear 5a lies in vertical alincment with said pin 57, whereupon said gear may be rotated for opening the shutters 25 and 37, the pin being rotatable upward through said groove 60.

From the foregoing it will be apparent that it is impossible to swing either the shutter 25 or the shutter 37 to slot-uncovering position until the plate holder has been seated in proper position within the top of the carriage. Thus it is impossible either by chance or by mistake to manipulate the shutters to admit light to the plates contained either in the magazine or in said plate holder. Further, when said shutters occupy open position, the plate holder is locked against removal from the carriage, thus guarding against the admission of light either to the plate holder or to the magazine by accidental or unintentional removal of the carriage prior to closing said shutters. The last-mentioned locking means comprises a cam (31 fixed on the end of shaft -16 opposite that on which the head a8 is fixed, said cam being so disposed that a portion thereof protrudes laterally through an opening or slot 62 provided therefor in the adjacent side plate 14 of the carriage when the shutters are open. \Vhen said shutters occupy closed position the cam 61 is withdrawn from the slot (32, permitting of unobstructed withdrawal of the plate holder from the carriage.

For maintaining the plate holder 28 in a perfectly upright position on the carriage, a pivoted latch 63 is provided on the side of the latter at a suitable point, the same being designed to have its hoolelike bill (if neatly seat in a recess 65 provided in the lower part of the frame 29 of said plate holder when such upright position is assumed.

Each of the threaded screws 17 upon which the carriage 13 is mounted carries a thereon a bevel gear 66 in mesh with a similar gear 67 carried b a shaft (38 which is journaled in suitable bearings 69 carried by one of the side walls 1 of the casing adjacent to the upper end of the latter. shaft 68 has one end extending outward beyond an end wall 2 and carries thereon a small gear 70 which is in mesh with a larger gear 71, the latter being rotatably mounted upon a projecting spindle 72 located upon a plate or bracket 73 which is fixed on said end wall 2 and projects laterally outward slightly beyond the plane of the adjacent side wall 1. A small metallic casing 74 of substantially rectangular form secured upon said plate or bracket 73 incloses said gears 7 O and 71. Attached to or formed integral with said gear 71 is a neck or stem 7 5 which extends outward through said casing 74 and carries on its outer end a knob 76 or other suitable device whereby said gear may be rotated by hand.

Pivotally mounted within the casing 74 is a pair of oppositely disposed pawls 77 and 7 8 adapted to cooperate with the gear 71, but

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we ope scrlbod an about which said disk is rotatable and having a plurality of radially disposed inwardly curved arms 98 frictionally engaging the face of said disk, said body member and arms being made of resilient material so that a yielding pressure is exerted by said arms upon said disk.

As is apparent, when it is desired to remove any certain plate from the magazine, the carriage is moved forward or rearward, as may be necessary, until there is exposed through the window 94 of the cover plate 93 the number indicating the position occupied by said plate. The lower end of the individual plate holder 28 is then fitted in the carriage 13 in the manner hereinbefore described. As said end of the plate holder approaches its seat in said carriage, the beveled inner end of the dog 58 is engaged by the lower edge of the adjacent end of the plate holder, and said dog is thereby thrust outward against the tension of. its spring 59. The knob 53 is then rotated forward for swinging the shutters 25 and 37 ,to open position, and the lever ll is swung outward to withdraw the hook 39 from the throat 35 of said plate holder. Finally, the magazine and said plate holder are together turned bottom end upward, whereupon the desired plate will gravitate into the pocket 31 of said plate holder. With the magazine and plate holder in said. position the hook 39 is returned to its original position. Then, before the plate holder can be removed from the carriage, the shutters 25 and 37 must, as has hereinbefore been explained, be re turned to their closed positions. This action serves to release the plate holder, which may then be inserted in a camera in precisely the same manner as the ordinary plate holding slides.

From the foregoing it will be seen that I have described my invention with considerable detail, but it will be obvious that manv changes or alterations mav be made in the form and arrangement of the various parts without departing from the general spirit or scope of the invention as defined in the appended claims.

What is claimed is 1. A plate holding magazine comprising a casing, spaced pockets within said casing, rollers carried by said casing, a flexible cnr tain movable over one end of said casing and having its ends connected beneath said rollers, said curtain having a slot therein, a carriage disposed in fixed relation to and movable with said curtain, said carriage being adapted to receive an end of a plate holding slide, and normally closed means for preventing the passage of light through said slot.

2. A plate holding magazine comprising a casing, spaced pockets within said casing, rollers carried at the sides of said casing,

a flexible curtain movable over one end of said casing, straps connecting the opposite ends of said curtain and operating under said rollers, said curtain having a slot therein, a carriage disposed in fixed relation to and movable with said curtain, said carriage being adapted to receive an end of a plate holding slide, and h ving a slot therein in vertical alinement with the slot in the curtain, means normally maintaining the carriage slot closed, and means for moving the slot-closing means to open position.

3. A plate holding magazine comprising a casing, s aced pockets within said casing. a flexible curtain movable over one end of said casing, said curtain having a slot therein, carriage disposed in fixed relation to and movable with said curtain, said carriage being adapted to receive an end of a plate holding slide, and having a slot therein in vertical. alinement with the slot in the curtain, means normally maintaining the carriage slot closed, and means operable only when said slide received in said carriage whereby the slot-closing means may be moved to open position.

4. A plate holding magazine comprising a casing, spaced pockets within said casing, a flexible curtain movable over one end of said casing, said curtain having a slot therein, a carriage disposed in fixed relation to and movable with said curtain, said carriage being adapted to receive an end of a plate holding slide, and having a slot therein in vertical alinement with the slot in the curtain, means normally maintaining the carriage slot closed, means operable only when said slide is received in said carriage whereby the slot-closing means may be moved to open position, and means preventing the removal of said slide from said carriage prior to closing of said slotclosing means.

A plate holding magazine comprising a casing, spaced pockets within said casing, a flexible curtain movable over one end of said casing, said curtain having a slot therein, a carriage disposed in fixed relation to and movable with said curtain, said carriage being adapted to receive an end of a plate holding slide and having a slot therein in vertical alinement with the slot in the curtain, a shutter normally maintaining the carriage slot closed for excluding light from the interior of the casing, and means operable only when said slide is received in said carriage whereby said shutter may be swung to slot-opening position.

6. The combination with a casing having spaced pockets therein for receiving a plurality of photographic plates, of a flexible curtain movable over one end of said casing, said curtain having a slot therein, a carriage disposed in fixed relation to said eurtain and movable therewith, said carriage passage closed, a plate-holding slide having one end adapted to seat in said carriage said end having a passage for plates ther n which registers wi h the passage in said carriage, means normally maintaining the slide-pass c1 sed cooperating means carried by t id slide and said carriage whereby the passage-dosing means of both 1 simultaneous y actuated to move to and a closing posi us, means m'eventing d c ciation of said slide from said carriage when said passi'ige-closing means occupy open positions, means for moving said carriage, said carriage-moving means being adapted to advance the carriage by successive uniform steps of a length corresponding to the width of the pockets in the casing, and means automatically arresting said. advance movement as the carriage successively assumes a position wherein its passage is in registering relation with said pockets.

The combination with a casing having spaced pockets therein for receiving a pinrality of pl'iotogra iihic plates, of a carriage mo able o er one end of said casing, said carriage having a passage for plates therethrough, means normally maintaining said passage closed, a plate-holding slide having one end adapted to seat in said carriage, said end having a passage for piates therein which reg with the passage in said carriage means normally maintaining the slide-passage closed, cooperating means carried by said s ide and said carriage whereby the passageclosing means of both may be sinuiltaneously actuated to move to and in closing positions, means preventing tflissocias tion of said slide trom said carriage when said passage-closing means occupy open positions means for moving said car rage, said carriage-moving means being adapted to adance the ca iage by successive uniform steps of a length corresponding to the width of the pockets in the casing, and means visually indicating the position of said riage w th respect to said pockets.

li. The combination with a casing having spaced pockets therein for receiving a plurality of photographic plates, of a carriage movable over one end of said casing, said carriage having a passage for plates therethrongh, means normally maintaining said passage closed a plate-holding slide having one end adapted to seat in said carriage, said end having a passage for plates therein which registers with the passage in said carriage, means normally maintaining the slide-passage closed, cooperating means carried by said slide and said carriage whereby the passage-closing means of both may be simultaneously actuated to move to and from steps of a lengta corvespon ding to the width of the OilCCi'S m the casing, means autosat. advance movement 7 icccssively assumes a position wherein r s 1 sa 'e in registering relation with said pockets, and means visually indicating the pocket with which said carriage passage is register.

15. The combination with casing adapted for containing a plurality of photographic plates a curtain movable over one end of said casing and having a passage for plates therethrough, means normally occupying light-excluding relation to said passage, a plateholding slide adapted to seat over said passage, said slide having a passage for slides therein, mean normally occupying lighbexcluding relation to said slidepassage, means operable only when said slide occupies seated position whereby the light-excludin means tt'orboth said passages its moved to and from light-excluding positions, and n'ieans preven 1g removal of said slide from sea Iron until said lightexcluding means occupy light-excluding positions.

16. The comb atioii with a casing adapted for eontainng a. plurality of photographic plates. a curtain movable over one end of said ca g and h g a passage for plates theretlie-ongi means normally occupying light-exciui relation to said passage a plate-holeung s ide adapted to seat e id slide hai-ing a pastrein, means normally Y ailing relation to said means opexablc only when said slide oc :uni seated position whereby the light-exclu ncans for be th said passages is moved A c light-excluding positions mean ventin removal of said slide from seat tio u Lil said lightexcluding -excluding positions at l, for shifting the position of sain cu in for causing the curtain passage to asnune an desired position with respectto said 11:.

In testimony whereof, I my signature in presence 01' two subscribing wit- HESSQS.

GEORGE C. BRUHN, JR. it-nesses H. E. DUNLor, \V. F. Kniirnn.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C. 

